Notice: If you use an improper coolant mixture,
your engine could overheat and be badly damaged.
The repair cost would not be covered by your
warranty. Too much water in the mixture can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
Notice: If you use the proper coolant, you do not
have to add extra inhibitors or additives which claim
to improve the system. These can be harmful.
Checking Coolant
The coolant surge tank is
located in the engine
compartment on the
passenger’s side of the
vehicle. See Engine
Compartment Overview
on page 5-14 for more
information on location.
{
CAUTION:
Turning the surge tank pressure cap when the
engine and radiator are hot can allow steam
and scalding liquids to blow out and burn you
badly. Never turn the surge tank pressure
cap — even a little — when the engine and
radiator are hot.
The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at the
FULL COLD mark.
If your vehicle is equipped with a low coolant sensor,
and the LOW COOLANT LEVEL message comes
on and stays on, it means you’re low on engine coolant.
See “Low Coolant Level” under DIC Warnings and
Messages on page 3-68.
5-29
Summary of Contents for 2004 Yukon XL
Page 5: ...These are some examples of symbols that may be found on the vehicle v...
Page 6: ...Model Reference This manual covers these models Yukon Yukon XL Extended Model vi...
Page 63: ...Yukon XL Second Row Seat Bucket Seats Similar Third Row Bench Seat 1 57...
Page 161: ...NOTES 3 3...
Page 162: ...Instrument Panel Overview 3 4...
Page 378: ...NOTES 4 80...
Page 394: ...When you open the hood on the VORTEC 8100 V8 engine you ll see the following 5 16...
Page 498: ...5 120...
Page 522: ...Engine Drive Belt Routing V6 Engines V8 Engines 6 18...